Block Diagram Of The Sm 335 - Siemens SIMATIC SM 335 Manual

1.3

Block diagram of the SM 335

Block diagram
Figure 1-2 shows the block diagram of the SM 335. You will find detailed technical
specifications for the SM 335 on the following pages.
Internal power supply
SIMATIC S7-300
backplane bus
Logic
Galvanic isolation
Fig. 1-2 Block Diagram of the SM 335
Galvanic isolation
As you can see from Figure 1-2, the SM 335 contains different analog parts.
The analog outputs are isolated from the backplane bus of the SIMATIC S7-300.
The outputs are on the same potential M
same potential M
The analog inputs are isolated from each other and from the backplane bus of the
SIMATIC S7-300.
The input for the interval counter IZ is isolated from the other analog parts and
from the backplane bus of the SIMATIC S7-300.
SM 335 – High-Speed Analog Input/Output Module for the SIMATIC S7-300
6ES7 335-7HG00-8BA1
Characteristics and Technical Specifications of the SM 335
A
D
Open-wire
test circuit
as the analog outputs.
ANA
CH0
Analog outputs
CH1
CH2
CH3
10 V
CH0
A
CH1
D
CH2
CH3
Interval Counter Input
. The output for sensor supply has the
ANA
24 V
Sensor power
supply
Analog inputs
IZ
1-5